# Temperature & humidity sensor Milesight EM300TH915M

**URL:** https://aio.lv/en/product--milesight-em300-zld-868m--4094525
**Data updated:** 2026-03-17 20:26 (EET)
**Category:** Smart Sensors
**Manufacturer:** Milesight
**Manufacturer code:** EM300-ZLD-868M
**EAN:** 2000001167021
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 103.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--milesight-em300-zld-868m--4094525

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Milesight EM300TH915M is a freestanding temperature and humidity sensor designed for both indoor and outdoor use. It features a long battery life of up to 5 years with a 4000 mAh capacity. The sensor measures 88 mm in width, 87 mm in depth, and 27 mm in height, making it compact and easy to place in various environments. Ideal for monitoring climate conditions effectively.

## Long description

The Milesight EM300TH915M Temperature & humidity sensor is a freestanding device for indoor and outdoor climate monitoring. It measures 88 mm × 87 mm × 27 mm and is designed for compact placement where continuous temperature and humidity tracking is required. The sensor uses a high-sensitivity sensing element that delivers precise readings across a wide temperature range and supports up to five years of battery life with a 4000 mAh cell. The enclosure is rated IP67 for protection against dust and temporary immersion in water, and the unit stores up to 2800 historical data records to support traceability.
Advantages
The EM300TH915M provides high measurement accuracy with ±0.3 °C temperature and ±3% RH humidity performance, using a Sensirion sensing module. Its IP67 waterproof enclosure allows use in challenging environments while preserving sensor reliability. Local data storage of 2800 records ensures historical information remains available and cannot be manually deleted, improving data integrity. Built-in retransmission support helps maintain reliable communication to a web server even when network interruptions occur. NFC-based on/off switching and configuration simplify setup from a mobile phone or PC.
Suitable for
 Indoor climate monitoring in offices, server rooms and warehouses
 Outdoor environmental monitoring under sheltered or exposed installations
 Cold chain monitoring for storage areas sensitive to temperature and humidity
 Industrial and agricultural environments requiring durable, waterproof sensors
 Applications needing locally stored historical records for traceability
Key specifications
 Measurement ranges: -30 °C to 70 °C; 0% to 100% RH
 Accuracy: ±0.3 °C (temperature); ±3% RH (humidity)
 Power: 4000 mAh battery with up to 5 years typical life
 Housing protection: IP67
 Dimensions: 88 mm (W) × 87 mm (D) × 27 mm (H)
 Local data storage: up to 2800 historical records
 Communication features: retransmission support for reliable data delivery
 Type: Freestanding sensor with NFC-based configuration
How to use
Place the EM300TH915M on a stable surface or mount it in a sheltered outdoor location where the sensor element is exposed to the ambient air but protected from direct water jets when possible. Power the device with the internal 4000 mAh battery and configure device parameters using NFC from a compatible mobile phone or PC, following the manufacturer interface for reporting intervals and thresholds. Ensure the device is within radio range of your network gateway for regular data uploads; the unit will store readings locally when connectivity is lost and retransmit them when the link is restored.
Usage recommendations
For accurate and long-term measurements, avoid placing the sensor in direct sunlight or immediately adjacent to heat sources. If installed outdoors, use a location that provides ventilation but limits direct exposure to rain and snow despite the IP67 rating. Periodically verify recorded data and battery status through your management platform to ensure continuous operation and plan battery replacement before the expected end of life.

## Specifications

| Feature | Value |
|---|---|
| Sensor type | Temperature & humidity sensor |
| Purpose | Indoor/outdoor |
| Standard interfaces | NFC |
| Protection features | Waterproof |
| Temperature measuring range | -30 - 70 |
| Humidity measuring range | 0 - 100 |
| Battery life (max) | 5 year(s) |

### Features

| Feature | Value |
|---|---|
| Type | Freestanding |
| International Protection (IP) code | IP67 |

### Battery

| Feature | Value |
|---|---|
| Battery capacity | 4000 mAh |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 27 mm |
| Width | 88 mm |
| Depth | 87 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -30 - 70 |

## FAQ

### How much does the Temperature & humidity sensor EM300TH915M cost, and is it available for purchase?

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Milesight products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Milesight service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4094525/65594136_large.webp